/*===========================================================================*\
*                                                                           *
*                               OpenMesh                                    *
*      Copyright (C) 2001-2005 by Computer Graphics Group, RWTH Aachen      *
*                           www.openmesh.org                                *
*                                                                           *
*---------------------------------------------------------------------------* 
*                                                                           *
*                                License                                    *
*                                                                           *
*  This library is free software; you can redistribute it and/or modify it  *
*  under the terms of the GNU Library General Public License as published   *
*  by the Free Software Foundation, version 2.                              *
*                                                                           *
*  This library is distributed in the hope that it will be useful, but      *
*  WITHOUT ANY WARRANTY; without even the implied warranty of               *
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU        *
*  Library General Public License for more details.                         *
*                                                                           *
*  You should have received a copy of the GNU Library General Public        *
*  License along with this library; if not, write to the Free Software      *
*  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                *
*                                                                           *
\*===========================================================================*/


//=============================================================================
//
//  Implements a writer module for OFF files
//
//=============================================================================


#ifndef __OFFWRITER_HH__
#define __OFFWRITER_HH__


//=== INCLUDES ================================================================


#include <stdio.h>
#include <string>

#include <Core/System/config.hh>
#include <Core/Utils/SingletonT.hh>
#include <Core/IO/exporter/BaseExporter.hh>
#include <Core/IO/writer/BaseWriter.hh>


//== NAMESPACES ===============================================================


namespace OpenMesh {
	namespace IO {


		//=== IMPLEMENTATION ==========================================================


		/** 
		Implementation of the OFF format writer. This class is singleton'ed by 
		SingletonT to OFFWriter.
		*/
		class _OFFWriter_ : public BaseWriter
		{
		public:

			_OFFWriter_();

			std::string get_description() const { return "no description"; }
			std::string get_extensions() const  { return "off"; }

			bool write(const std::string&, BaseExporter&, Options) const;

			size_t binary_size(BaseExporter& _be, Options _opt) const;


		protected:

			bool write_ascii(FILE*, BaseExporter&, Options) const;
			bool write_binary(FILE*, BaseExporter&, Options) const;
		};


		//== TYPE DEFINITION ==========================================================


		/// Declare the single entity of the OFF writer.
		extern _OFFWriter_  __OFFWriterInstance;
		_OFFWriter_& OFFWriter();


		//=============================================================================
	} // namespace IO
} // namespace OpenMesh
//=============================================================================
#endif
//=============================================================================
